I love my kz75 but i have a problem

Hello every im new to this forum and the kz75 my first KWA gun and i love it the performance is stellar and it feels great...but i have a question.
when i am pulling the trigger for double action fire sometimes the hammer goes half-cocked and stays there and when i pull the trigger it feels like something is slipping and the hammer will only occasionally drop but most of the time will stay half way. single action operation is great and i don't have a problem, both DA and SA trigger pulls are smooth and awesome (when the DA is going full cycle)I think KWA set a new benchmark in out of the box GBB performance.

It's been done and patented... which makes sense in a way, since the 1911 is the grand-daddy of the CZ-75 (by way of Browning Hi-Power)

Didn't know the EAA's were SA, did know that some Tanfoglio clones were SA (but I guess that makes sense, since Tanfoglio was making EAA's).. still, you know how I am, "I wants what I wants, so there, nyah!"